<template>
    <div>
        <!-- 面包屑导航 -->
        <el-breadcrumb separator-class="el-icon-arrow-right">
            <el-breadcrumb-item :to="{ path: '/' }">首页</el-breadcrumb-item>
            <el-breadcrumb-item>用户管理</el-breadcrumb-item>
            <el-breadcrumb-item>用户列表</el-breadcrumb-item>
        </el-breadcrumb>
        <!-- 卡片视图 -->
        <el-card class="box-card"> 
            <!-- 搜索与添加区域 -->
            <el-row :gutter="20">
                <el-col :span="8">
                    <el-input placeholder="请输入内容" v-model="queryInfo.query" clearable @clear="getUserList">
                        <el-button slot="append" icon="el-icon-search" @click="getUserList"></el-button>
                    </el-input>
                </el-col>
                <el-col :span="4">
                    <el-button type="primary" @click="addDialogVisible = true">添加用户</el-button>
                </el-col>
            </el-row>
            <!-- 用户列表 -->
            <el-table :data="userlist" border stripe style="width: 100%">
                <el-table-column type="index"></el-table-column>
                <el-table-column prop="username" label="姓名" align="center"></el-table-column>
                <el-table-column prop="email" label="邮箱" align="center"></el-table-column>
                <el-table-column prop="mobile" label="电话" align="center"></el-table-column>
                <el-table-column prop="role_name" label="角色" align="center"></el-table-column>
                <el-table-column prop="mg_state" label="状态" align="center">
                    <template slot-scope="scope">
                        <el-switch v-model="scope.row.mg_state" @change="userStateChanged(scope.row)"></el-switch>
                    </template>   
                </el-table-column>
                <el-table-column label="操作" align="center" width="200%">
                    <template slot-scope="scope">
                        <!-- 修改按钮 -->
                        <el-tooltip effect="dark" content="修改" placement="top" :enterable="false">
                            <el-button type="primary" icon="el-icon-edit" size="mini" @click="showEditDialog(scope.row.id)"></el-button>
                        </el-tooltip>
                            <!-- 删除按钮 -->
                        <el-tooltip effect="dark" content="删除" placement="top" :enterable="false">
                            <el-button type="danger" icon="el-icon-delete" size="mini" @click="removeUserById(scope.row.id)"></el-button>
                        </el-tooltip>
                            <!-- 分配角色按钮 -->
                        <el-tooltip effect="dark" content="分配角色" placement="top" :enterable="false">
                            <el-button type="warning" icon="el-icon-setting" size="mini"></el-button>
                        </el-tooltip>
                    </template> 
                </el-table-column>
            </el-table>
            <el-pagination @size-change="handleSizeChange" @current-change="handleCurrentChange"
                :current-page="queryInfo.pagenum" :page-sizes="[1, 2, 5, 10]" :page-size="queryInfo.pagesize"
                layout="total, sizes, prev, pager, next, jumper" :total="total">
            </el-pagination>
        </el-card>
        <!-- 添加用户对话框 -->
        <el-dialog title="添加用户" :visible.sync="addDialogVisible" width="30%" @close = "addDialogClosed">
            <el-form :model="addForm" :rules="addFormRules" ref="addFormRef" label-width="70px">
                <el-form-item label="用户名" prop="username">
                    <el-input v-model="addForm.username"></el-input>
                </el-form-item>
                <el-form-item label="密码" prop="password">
                    <el-input v-model="addForm.password"></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="addForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="addForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="addDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="addUser">确 定</el-button>
            </span>
        </el-dialog>
        <!-- 修改用户的对话框 -->
        <el-dialog title="修改用户" :visible.sync="editDialogVisible" width="30%" @close = "editDialogClosed">
            <el-form :model="editForm" :rules="editFormRules" ref="editFormRef" label-width="70px">
                <el-form-item label="用户名" >
                    <el-input v-model="editForm.username" disabled></el-input>
                </el-form-item>
                <el-form-item label="邮箱" prop="email">
                    <el-input v-model="editForm.email"></el-input>
                </el-form-item>
                <el-form-item label="手机" prop="mobile">
                    <el-input v-model="editForm.mobile"></el-input>
                </el-form-item>
            </el-form>
            <span slot="footer" class="dialog-footer">
                <el-button @click="editDialogVisible = false">取 消</el-button>
                <el-button type="primary" @click="editUserzinfo">确 定</el-button>
            </span>
        </el-dialog>
    </div>
</template>

<script>
    export default{
        data(){
            //验证邮箱的规则
            var checkEmail = (rule,value,cb) => {
                // 验证邮箱的正则表达式
                const regEmail = /^([a-zA-Z0-9_-])+@([a-zA-Z0-9_-])+(\.[a-zA-Z0-9_-])+/
                if (regEmail.test(value)) {
                    // 合法的邮箱
                    return cb()
                }
                cb(new Error('请输入合法的邮箱'))
            }
            //验证手机号的规则
            var checkMobile = (rule,value,cb) => {
                // 验证手机号的正则表达式
                const regMobile = /^(0|86|17951)?(13[0-9]|15[012356789]|17[678]|18[0-9]|14[57])[0-9]{8}$/
                if (regMobile.test(value)) {
                    // 合法的手机号
                    return cb()
                }
                cb(new Error('请输入合法的手机号'))
            }
            return {
                //获取用户列表的参数对象
                queryInfo:{
                    query: '',
                    //当前页数
                    pagenum: 1,
                    //当前每页显示多少条数据
                    pagesize: 2
                },
                userlist:[],
                total: 0,
                //控制添加用户对话框的显示和隐藏
                addDialogVisible: false,
                //添加用户的表单数据
                addForm:{
                    username:'',
                    password:'',
                    email:'',
                    mobile:''
                },
                //添加表单的验证规则对象
                addFormRules:{
                    username: [
                        { required: true, message: '请输入用户名', trigger: 'blur' },
                        { min: 3, max: 10, message: '长度在 3 到 10 个字符', trigger: 'blur' }
                    ],
                    password: [
                        { required: true, message: '请输入密码', trigger: 'blur' },
                        { min: 6, max: 15, message: '长度在 6 到 15 个字符', trigger: 'blur' }
                    ],
                    email: [
                        { required: true, message: '请输入邮箱', trigger: 'blur' },{ validator: checkEmail, trigger: 'blur' }
                    ],
                    mobile: [
                        { required: true, message: '请输入手机号', trigger: 'blur' },{ validator: checkMobile, trigger: 'blur' }
                    ],
                },
                //控制修改用户对话框的显示和隐藏
                editDialogVisible: false,
                //查询到的用户信息对象
                editForm:{},
                editFormRules:{
                    email: [
                        { required: true, message: '请输入邮箱', trigger: 'blur' },{ validator: checkEmail, trigger: 'blur' }
                    ],
                    mobile: [
                        { required: true, message: '请输入手机号', trigger: 'blur' },{ validator: checkMobile, trigger: 'blur' }
                    ]
                }
            }
        },
        created(){
            this.getUserList()
        },
        methods:{
            async getUserList(){
                const {data:res} = await this.$http.get('users',{params:this.queryInfo})
                if(res.meta.status !== 200) {
                    return this.$message.error('获取用户列表失败！')
                }
                this.userlist = res.data.users
                this.total = res.data.total
                console.log(res)
            },
            //监听pagesize改变的事件
            handleSizeChange(newSize){
                //console.log(newSize)
                this.queryInfo.pagesize = newSize
                this.getUserList()
            },
            //监听页码值改变的事件
            handleCurrentChange(newPage){
                //console.log(newPage)
                this.queryInfo.pagenum = newPage
                this.getUserList()
            },
            async userStateChanged(userinfo){
                //console.log(userinfo)
                const {data:res} = await this.$http.put(`users/${userinfo.id}/state/${userinfo.id.mg_state}`)
                if(res.meta.status !== 200) {
                    userinfo.mg_state = !userinfo.mg_state
                    return this.$message.error('更新用户状态失败！')
                }
                this.$message.success('更新用户状态成功！')
            },
            addDialogClosed(){
                this.$refs.addFormRef.resetFields()
            },
            //点击确定按钮，添加新用户
            addUser(){
                this.$refs.addFormRef.validate(async valid =>{
                    if(!valid)return
                    //可以发起添加用户的网络请求
                    const {data:res} = await this.$http.post('users', this.addForm)
                    if(res.meta.status !== 201) {
                        return this.$message.error('用户创建失败！')
                    }
                    this.$message.success('用户创建成功！')
                    this.addDialogVisible = false
                    //重新获取用户列表数据
                    this.getUserList()
                })
            },
            //展示编辑用户信息的对话框
            async showEditDialog(id){
                //console.log(id)
                const {data:res} = await this.$http.get('users/' + id)
                if(res.meta.status !== 200) {
                    return this.$message.error('查询用户信息失败！')
                }
                this.editForm = res.data
                this.editDialogVisible = true
            },
            //监听修改用户对话框的关闭事件
            editDialogClosed(){
                this.$refs.editFormRef.resetFields()
            },
            //修改用户信息并提交
            editUserzinfo(){
                this.$refs.editFormRef.validate(async valid =>{
                    //console.log(valid)
                    if(!valid) return
                    //发起修改用户信息的数据请求
                    const {data:res} = await this.$http.put('users/' + this.editForm.id
                    , {
                        email:this.editForm.email,
                        mobile:this.editForm.mobile
                    })
                    if(res.meta.status !== 200) {
                        return this.$message.error('修改用户信息失败！')
                    }
                    //关闭对话框
                    this.editDialogVisible = false
                    //刷新数据列表
                    this.getUserList()
                    //提示修改成功
                    this.$message.success('修改用户信息成功！')
                })
            },
            async removeUserById(id){
                //弹框询问用户是否删除
                const confirmResult = await this.$confirm('此操作将永久删除该用户, 是否继续?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).catch(err => err)
                //如果用户确认了删除，则返回值为字符串 confirm
                //如果用户取消了删除，则返回值为字符串 cancel
                //console.log(confirmResult)
                if(confirmResult !== 'confirm'){
                    return this.$message.info('已取消删除')
                }
                // console.log('确认了删除')
                const {data:res} = await this.$http.delete('users/' + id)
                if(res.meta.status !== 200){
                    return this.$message.error('删除用户失败！')
                }
                this.$message.success('删除用户成功！')
                this.getUserList()
            }
        }
    }
</script>
<style scoped>
    .el-table{
        margin-top: 15px;
    }
    .el-pagination{
        margin-top: 15px;
    }
</style>